Bangkok, known in Thai as Krung Thep Maha Nakhon (IPA: [kruŋtʰeːp mahaːnakʰɔn], กรุงเทพมหานคร (help·info)) or Krung Thep (กรุงเทพฯ (help·info)) for short, is the capital of and largest city in Thailand, with an official year 2000 census population of 6,355,144, but actually numbering at least twice that.

Bangkok is the wealthiest and most populous city in Thailand, as well as the 22nd most populous city in the world. Although Bangkok now has roughly 7 million registered inhabitants, the actual population is much higher, and including commuters from the surrounding areas, may reach an estimated 15 million people during the day time, making the city one of the most densely populated in the world. Recently, the value of Bangkok's economic output has matched that of Singapore, making Bangkok a major economic and financial center in Southeast Asia. Bangkok has one of the fastest rates in the world for construction of high rise buildings. The city's wealth of cultural sites makes it one of the world's most popular tourist destinations.